Exam 16: Sense Organs

Which of the following is not an analgesic (pain reliever)found naturally in the central nervous system?

Which of the following does not contribute to the sense of equilibrium?

The three types of cones in the retina are differentiated from one another by what feature?

Where do most second-order somesthetic neurons synapse with third-order neurons?

The initial effect of a stimulus on a sensory receptor is a local electrical change specifically called a(an)__________.

A 100 dB sound (loud)of 150 Hz (low pitch)would cause which of the following to occur?

What is the only sense in which signals can reach the cerebral cortex without passing first through the thalamus?

Olfaction results from the stimulation of chemoreceptors.

What is a sensation?

Fast pain is a localized response mediated by myelinated nerve fibers.

An eye with which of the following conditions does not need a corrective lens to focus the image?

Which structure allows upper respiratory infections to spread from the throat to the tympanic cavity?

You can smell the fragrance of your deodorant when you just put it on,but after a little while the smell fades.What explains this phenomenon?

The ossicles belong to the middle ear.

When you spin while sitting in a swivel chair with your eyes closed,you can sense this movement by means of your __________.

Which of the following structures houses the spiral organ?

Rods secrete glutamate from the base of the cell when exposed to light.

Each upward movement of the basilar membrane causes the stereocilia of the inner hair cells to bend,opening __________ gates.

The vestibule contains organs of hearing and equilibrium.

The cornea belongs to the tunica fibrosa (fibrous layer)of the eyeball.